保山盆地羊邑组二～三段高分辨率层序地层分析

通过精细划分对比地层、深入分析层序结构、建立层序地层格架,综合分析了保山盆地的露头剖面、钻井岩芯、测井资料,在羊邑组二～三段内识别出了3类不同级次的层序界面。根据划分出的各层序界面将羊邑组二～三段细分为9个中期、31个短期、66个超短期基准面旋回层序。在此基础上,分析了各级次基准面旋回层序的垂向序列、岩性岩相组合、结构类型及叠加样式等特征,重点讨论了向上“变深”的非对称型和对称型2类超短期基准面旋回层序类型。进一步探讨了高分辨率层序地层学在扇三角洲-湖泊沉积体系的地层划分与对比、地层格架构建中的应用。     

添加剂滥用引发的食品安全事件与公众恐慌行为研究

随着各种食品安全事件的频发,食品安全越来越受到消费者的关注和担忧。其中,添加剂风险已成为食品安全风险中比较突出的风险之一。文章基于江苏省内经济发展程度存在显著差异的南部(苏南)、中部(苏中)、和北部(苏北)三个地区657名消费者的实际调研数据,以计划行为理论与结构方程模型为主要分析工具,研究了影响公众食品添加剂安全风险感知及其恐慌行为的主要因素,并提出了相应的政策建议。     

The Role of Al-Awqāf (Islamic Endowments) in Poverty Alleviation and Community Development in the Nigerian Context

Al-Waqf (endowment) is a form of charity in Islam. Among its special features is that it is permanent and irrevocable while its benefits also go from one generation to another. It involves the transfer of property from the original owner to the cause of Allah. It is as old as the practice of Islam. At the beginning, simple assets such as farmlands, wells and orchards were endowed. Charity, in this respect, may include building of centers for education, hospitals, public facilities and residential houses in modern time. Regrettably, the practice of al-waqf is no more as popular as it was in the past. Although, rich people among Nigerian Muslims used to donate during their lifetimes for personal or community projects. In most cases, those projects die with their death since no portion of their wealth is endowed for them. This article therefore looked into the relevance of al-waqf as takāful-ijtimā‘i (social insurance) product at present. It examined the definition, significance, conditions of validity and administration of al-waqf. The study revealed that al-waqf can bring about a positive change, meaningful development and transformation in helping the poor and the needy in the community. It suggests that al-waqf should be integrated in the takāful (insurance) practices.     

Lot Sampling Distributions for Bounded Number of Nonconformities

Attributes sampling is an important inspection tool in areas like product quality control, service quality control or auditing. The classical item quality scheme of attributes sampling distinguishes between conforming and nonconforming items, and measures lot quality by the lot fraction nonconforming. A more refined quality scheme rates item quality by the number of nonconformities occurring on the item, e.g., the number of defective components in a composite product or the number of erroneous entries in an accounting record, where lot quality is measured by the average number of nonconformities occurring on items in the lot. Statistical models of sampling for nonconformities rest on the idealizing assumption that the number of nonconformities on an item is unbounded. In most real cases, however, the number of nonconformities on an item has an upper bound, e.g., the number of product components or the number of entries in an accounting record. The present study develops two statistical models of sampling lots for nonconformities in the presence of an upper bound a for the number of nonconformities on each single item. For both models, the statistical properties of the sample statistics and the operating characteristics of single sampling plans are investigated. A broad numerical study compares single sampling plans with prescribed statistical properties under the bounded and unbounded quality schemes. In a large number of cases, the sample sizes for the realistic bounded models are smaller than the sample sizes for the idealizing unbounded model.     

文本聚类中罚多项混合模型的特征选择及其在互联网舆情分析中的应用

高维稀疏数据的特征选择是互联网舆情文本聚类分析的关键。借鉴罚模型思想,利用罚多项混合模型,给不显著影响聚类结果的特征予较重惩罚的方式实现特征选择,可有效选出代表舆情各类观点的典型词汇,实证应用中有较为理想的表现。     

Measuring policy entitlements at the micro-level: maternity and parental leave in Europe

Comparative social policy analysis has been shaped by the measurement of policy as a macro phenomenon. However, social policy theories have consistently asserted that policy entitlements vary across class, gender, ethnicity and the life-course. This paper synthesises a number of innovations to produce an approach which allows researchers to explore the policy heterogeneity within populations, across populations and over time. Using the example of maternity and parental leave, policy entitlements are identified through the calculation of financial support an individual would receive if they were to have a child, using a combination of legislative rules with representative survey sample. The results reveal far greater heterogeneity in policy entitlements than existing indicators suggest, with considerable implications for research on maternity and parental leave. This approach is not limited to maternity and parental leave benefits and demonstrates a way to explore comparative social policy in greater depth and detail.     

基于社区医院的智慧社区健康养老模式研究——以重庆市智慧社区建设为例

养老问题关乎我国的国计民生,各个省市都在尝试养老新模式,但是还没有形成一个广泛认可的方案。新型社区健康养老模式是以社区医院为依托,建立完善的、适合各阶层收入的智慧型社区健康养老模式。该模式以政府为主导,社区、养老机构、社区医院三位一体,有机结合。基于智慧社区健康养老模式构建面临的问题,针对性地提出建设性意见。     

陆相压性浅水湖盆隐蔽油气藏勘探实践

应用层序地层学和沉积学原理及方法,建立了吐鲁番拗陷中下侏罗统高精度层序地层格架,共划分5个三级层序、10个四级层序;并于层序格架内分析了隐蔽油气藏成藏要素及生储盖组合特征。进一步探讨了陆相压性浅水湖盆隐蔽油气藏的发育特征与分布规律,从储层性质横向变化的机理及形成圈闭的控制因素出发,将研究区内隐蔽圈闭划分为岩性、地层和复合圈闭3大类、8亚类,对各种圈闭类型、成藏特征及其发育区域和层位进行了全面分析,研究表明,纵向上岩性和地层圈闭分别受控于层序界面和体系域,复合圈闭受构造活动期次及岩性侧向封堵的复合条件控制,而在平面展布上隐蔽圈闭具有条带状的特征;进而对隐蔽油气藏的有利勘探区进行了预测和评价。     

沪深300股指期货定价模型的改进及实证研究

根据沪深300股指期货市场的实际情况,将交易成本、冲击成本、借贷利率不等、融资融券、间断股利发放等因素纳入考虑,对克莱蒙考斯基和李无套利区间定价模型进行改进,推导出一个不完美市场下适用于沪深300股指期货定价的无套利区间定价模型。该模型克服了持有成本定价模型和隐含增长率定价模型假设条件太强的缺陷,在对11份沪深300股指期货合约日收盘价数据的实证后发现,该模型无套利区间定价模型定价效率最高。     

林业专业合作社盈余利益分配标准的经济学分析

针对林业专业合作社利益分配问题,分析社员的利益分配行为和两种不同盈余利益分配标准造成的社员利益差异,揭示社员倾向于按出资额与交易量比例中较大的标准进行盈余利益分配,以获得更多的利益而承担更少的成本,提出完善合作社利益分配制度应当在内部契约上坚持以交易额分配为主,将出资额的合理利息界定为合作社成本,尽量保持社员出资额与交易额比例相一致,在配套制度上政府应当减少税费、扩大财政支持、加强教育引导与外部监督,以促进合作社健康发展。